GBU-28

The Guided Bomb Unit 28 (GBU-28), also known as a "bunker buster", is a laser-guided 5,000-pound bomb first employed by the United States during the Gulf War in 1991, when they began manufacture.

History
The GBU-28 was nicknamed the "bunker buster" for its ability to destroy hardened bunkers used as Iraqi command centers during the Gulf War. Despite their fame, bunker busters were used only twice during the war. This tested their strength, and the United States used GBU-28s during the Afghanistan War in 2002 and the Iraq War in 2003, giving Iraq another taste of the weapons. GBU-28s later came into the stockpile of Israel, an ally of the United States in 2005. In 2009 Israel gained 55 bunker busters, and they were allegedly used in the Gaza War against Hamas.